Class CommonHelper

Method Details

• ensureIndex

  public static void ensureIndex(List<?> a, int i)

  ensures that ArrayList a can call set(i, Object)

  Parameters:

  a -

  i -

• set

  public static <T> T set(ArrayList<T> a, T value, int index)

• insert

  public static <T> void insert(ArrayList<T> a, T value)

  Sets the index of the first null element in a to value, or adds value to the end of a if none of the elements are null.

  Parameters:

  a -

  value -

• indexOfAbsoluteMax

  public static int indexOfAbsoluteMax(Object array) throws ClassCastException

  Parameters:

  array - - An Array of either Number primitives, or actual Number objects

  Returns:

  The index of the max value, or -1 if there was more than one instance of the max value in the array

  Throws:

  ClassCastException - if you fail at reading javadocs

• wrapperArray

  public static Object[] wrapperArray(Object aprimitive)

• addEntries

  public static <K, V> Map<K,V> addEntries(Map<K,V> map, K[] keys, V[] vals)

• addEntries

  public static <K, V> Map<K,V> addEntries(Map<K,V> map, Object[] kvs)

  adds entries for every 2 objects in kvs.
  

• getIgnoreCase

  public static <V> V getIgnoreCase(Map<String,V> map, String key)

• textInQuotes

  public static String textInQuotes(String str)

• decodeInteger

  public static byte[] decodeInteger(int encoded, int size)

  Decodes an integer into an array of small numbers

  Parameters:

  encoded - The integer created from the #encodeInteger method

  size - The bitwidth per smaller number. The maximum size for the smaller inclusions is equal to 2^size. Note: this method only supports sizes from 1-8 inclusive.

  Returns:

  The decoded array

• encodeInteger

  public static int encodeInteger(byte[] toEncode, int size)

  Encodes an array of small numbers into an integer.

  Parameters:

  toEncode - The array to encode

  size - The bitwidth of each small number. The maximum value for each smaller value is equal top 2^size. Numbers larger than this will have additional bits discarded.

  Returns:

• disableLogMessage

  public static boolean disableLogMessage(Class<?> clazz, String regex)